Fourteen of 15 surviving infants with birth weights between 960 and 1,100 gm and 14 healthy mature infants born after July 1968 were examined 11¼ to 33½ months after birth. Eleven infants in each group had normal neurological examinations while three mature and one low birth-weight (LBW) infant had borderline results. Two LBW infants had neurologic deficits. All electroencephalogram patterns were normal except for one in a mature infant. Mean IQ scores were identical for both groups (100 LBW; 101 mature), as were developmental performance and social quotients. In contrast to the grim predictions of the past, these preliminary data suggest a more encouraging prognosis for the surviving tiny premature infant.
Dweck HS, Saxon SA, Benton JW, Cassady G. Early Development of the Tiny Premature Infant. Am J Dis Child. 1973;126(1):28-34. doi:10.1001/archpedi.1973.02110190024005